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HBASE-17673 Monitored RPC Handler not shown in the WebUI (Allan Yang)

This commit is contained in:
tedyu 2017-02-28 07:44:35 -08:00
parent 2131c79552
commit 7d38e6126a
2 changed files with 31 additions and 2 deletions
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12
hbase-server/src/main/java/org/apache/hadoop/hbase/monitoring/TaskMonitor.java
View File

@ -53,6 +53,7 @@ public class TaskMonitor {
private static TaskMonitor instance;
private CircularFifoBuffer tasks = new CircularFifoBuffer(MAX_TASKS);
private List<TaskAndWeakRefPair> rpcTasks = Lists.newArrayList();
/**
* Get singleton instance.
@ -88,7 +89,7 @@ public class TaskMonitor {
new Class<?>[] { MonitoredRPCHandler.class },
new PassthroughInvocationHandler<MonitoredRPCHandler>(stat));
TaskAndWeakRefPair pair = new TaskAndWeakRefPair(stat, proxy);
tasks.add(pair);
rpcTasks.add(pair);
return proxy;
}
@ -120,13 +121,20 @@ public class TaskMonitor {
*/
public synchronized List<MonitoredTask> getTasks() {
purgeExpiredTasks();
ArrayList<MonitoredTask> ret = Lists.newArrayListWithCapacity(tasks.size());
ArrayList<MonitoredTask> ret = Lists.newArrayListWithCapacity(tasks.size() + rpcTasks
.size());
for (Iterator<TaskAndWeakRefPair> it = tasks.iterator();
it.hasNext();) {
TaskAndWeakRefPair pair = it.next();
MonitoredTask t = pair.get();
ret.add(t.clone());
}
for (Iterator<TaskAndWeakRefPair> it = rpcTasks.iterator();
it.hasNext();) {
TaskAndWeakRefPair pair = it.next();
MonitoredTask t = pair.get();
ret.add(t.clone());
}
return ret;
}

21
hbase-server/src/test/java/org/apache/hadoop/hbase/monitoring/TestTaskMonitor.java
View File

@ -100,6 +100,27 @@ public class TestTaskMonitor {
assertEquals("task 10", tm.getTasks().get(0).getDescription());
}
@Test
public void testDoNotPurgeRPCTask() throws Exception {
int RPCTaskNums = 10;
for(int i = 0; i < RPCTaskNums; i++) {
TaskMonitor.get().createRPCStatus("PRCTask" + i);
}
for(int i = 0; i < TaskMonitor.MAX_TASKS; i++) {
TaskMonitor.get().createStatus("otherTask" + i);
}
int remainRPCTask = 0;
for(MonitoredTask task :TaskMonitor.get().getTasks()) {
if(task instanceof MonitoredRPCHandler) {
remainRPCTask++;
}
}
assertEquals("RPC Tasks have been purged!", RPCTaskNums, remainRPCTask);
}
}